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<TITLE>[Chapter 26] 26.6 java.lang.reflect.Method (JDK 1.1)</TITLE>
<META NAME="author" CONTENT="David Flanagan">
<META NAME="date" CONTENT="Thu Jul 31 16:28:58 1997">
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<DIV CLASS=sect1>
<h2 CLASS=sect1><A CLASS="TITLE" NAME="JNUT2-CH-26-SECT-6">26.6 java.lang.reflect.Method (JDK 1.1)</A></h2>

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<h3 CLASS=sect2><A CLASS="TITLE" NAME="JNUT2-CH-26-SECT-6.1"></A></h3>
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<P CLASS=para>
This class represents a method.  Instances of <tt CLASS=literal>Method</tt>
are obtained by calling the <tt CLASS=literal>getMethod()</tt> and related
methods of <tt CLASS=literal>java.lang.Class</tt>.  <tt CLASS=literal>Method</tt>
implements the <tt CLASS=literal>Member</tt> interface, so you can use the
methods of that interface to obtain the method name,
modifiers, and declaring class.  In addition,
<tt CLASS=literal>getReturnType()</tt>, <tt CLASS=literal>getParameterTypes()</tt>, and
<tt CLASS=literal>getExceptionTypes()</tt> also return important
information about the represented method.

<P CLASS=para>
Perhaps most important, the <tt CLASS=literal>invoke()</tt> method allows
the method represented by the <tt CLASS=literal>Method</tt> object to be
invoked with a specified array of argument values.  If any
of the arguments are of primitive types, they must be
converted to their corresponding wrapper object types in
order to be passed to <tt CLASS=literal>invoke()</tt>.  If the represented
method is an instance method (i.e., if it is not
<tt CLASS=literal>static</tt>), the instance on which it should be invoked
must also be passed to <tt CLASS=literal>invoke()</tt>.  The return value
of the represented method is returned by <tt CLASS=literal>invoke()</tt>.
If the return value is a primitive value, it is first
converted to the corresponding wrapper type.  If the invoked
method causes an exception, the <tt CLASS=literal>Throwable</tt> object it
throws is wrapped within the
<tt CLASS=literal>InvocationTargetException</tt> that is thrown by
<tt CLASS=literal>invoke()</tt>.

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<PRE>
public final class <tt CLASS=literal>Method</tt> extends Object implements Member {
    // <tt CLASS=literal>No Constructor</tt>
    // <tt CLASS=literal>Public Instance Methods</tt>
            public boolean <tt CLASS=literal>equals</tt>(Object <tt CLASS=literal>obj</tt>);  //<tt CLASS=literal> Overrides Object</tt>
            public Class <tt CLASS=literal>getDeclaringClass</tt>();  //<tt CLASS=literal> From Member</tt>
            public Class[] <tt CLASS=literal>getExceptionTypes</tt>();
            public native int <tt CLASS=literal>getModifiers</tt>();  //<tt CLASS=literal> From Member</tt>
            public String <tt CLASS=literal>getName</tt>();  //<tt CLASS=literal> From Member</tt>
            public Class[] <tt CLASS=literal>getParameterTypes</tt>();
            public Class <tt CLASS=literal>getReturnType</tt>();
            public int <tt CLASS=literal>hashCode</tt>();  //<tt CLASS=literal> Overrides Object</tt>
            public native Object <tt CLASS=literal>invoke</tt>(Object <tt CLASS=literal>obj</tt>, Object[] <tt CLASS=literal>args</tt>) throws IllegalAccessException, IllegalArgumentException, InvocationTargetException;
            public String <tt CLASS=literal>toString</tt>();  //<tt CLASS=literal> Overrides Object</tt>
}
</PRE>
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<DIV CLASS=sect2>
<h3 CLASS=sect2><A CLASS="TITLE" NAME="JNUT2-CH-26-SECT-6.2">Passed To:</A></h3>

<P CLASS=para>
EventSetDescriptor(), 
IndexedPropertyDescriptor(), 
MethodDescriptor(), 
PropertyDescriptor()

</DIV>

<DIV CLASS=sect2>
<h3 CLASS=sect2><A CLASS="TITLE" NAME="JNUT2-CH-26-SECT-6.3">Returned By:</A></h3>

<P CLASS=para>
Class.getDeclaredMethod(), 
Class.getDeclaredMethods(), 
Class.getMethod(), 
Class.getMethods(), 
EventSetDescriptor.getAddListenerMethod(), 
EventSetDescriptor.getListenerMethods(), 
EventSetDescriptor.getRemoveListenerMethod(), 
IndexedPropertyDescriptor.getIndexedReadMethod(), 
IndexedPropertyDescriptor.getIndexedWriteMethod(), 
MethodDescriptor.getMethod(), 
PropertyDescriptor.getReadMethod(), 
PropertyDescriptor.getWriteMethod()

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